Light / Energy Flashcards
1
Q
if wavelength = 465nm, frequency is
A
V=c/wavelength
V= 3x10^8 / 4.65 x 10^-7 m =
6.45 x 10^14
2
Q
if frequency is 6.45 x 10^14
what is energy
A
E= 6.626 x 10^-34 (6.45x 10^14) = 4.27 x 10^-19 J
3
Q
frequency= 5.24 x 10^14
wavelength ?
A
wavelength = c/v
c= wave x v
wave= 3x 10^8 / 5.24x10^14
5.7251908 x 10^-7 m
4
Q
what is energy
A
E= h * c/wave
5
Q
what is Hz: s-1
A
1Hertz= 1 s-1
6
Q
410 nm waveleth, what is frequency
A
V= c/wl
V= 3 x 10^8 / 4.1 x 10^-7 =
7.32 x 10^14 Hz
7
Q
energy of light emitted from n=5 to n=3
A
E= -2.178 x 10^-8 ((1/nf^2) - (1/ni ^2))
E= -1.55 x 10^-19 J
